How well can people recall what they have observed. Test your knowledge in this fun experiment.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Create a bee garden to help shelter bees in your area.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

This science project teaches students to classify different shapes of leaves.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.